It's high time for the Christians of America to get off the sidelines, get out of the pews, lay down the Bible and get involved in politics and culture. This isn't to say abandon church and the Bible -- rather, it's to say carry church teachings and Bible truths into the political and cultural realms so as to take back the nation from the Marxists and leftists who are trying to destroy American Exceptionalism. Tommy Nelson, author of "God and Country," discusses what Christians can and should be doing to save America.